What Is the Numerical Relationship of Neuroglial Cells Compared to Neurons

question 37

Multiple Choice

What is the numerical relationship of neuroglial cells compared to neurons?

• A) Because they are big, one neuroglial cell can serve many neurons, so there are about nine neurons for every neuroglial cell.
• B) There are about an equal number of both; each neuron has a companion neuroglial cell.
• C) There are about nine neuroglial cells for every neuron.
• D) The numbers vary widely from animal to animal and depend on the size of the animal.
• E) Brain volume is made of approximately two-thirds neurons and one-third neuroglial cells.

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Definitions:

Quartz

A hard, crystalline mineral composed of silicon dioxide, widely used in jewelry and as an industrial abrasive.

Feldspar

A group of silicate minerals that are among the most abundant minerals in the Earth's crust, commonly found in igneous, metamorphic, and sedimentary rocks.

Calcite

A common naturally occurring calcium carbonate mineral, often found in sedimentary rocks, and the primary mineral that makes up limestone.

Chemical Elements

Substances that cannot be broken down into simpler substances by chemical means, and are defined by the number of protons in their atomic nuclei.